Locomotive stoker



June 30, 1925.

v c. H. JEFFERS LOCOMOTIVE STOKER C H 'JEFFERVS,

2 $11eets-Sheet l Filed May 5,

mm mm m June 30, 1925.

c. H. JEFFERS LOCOMOTIVE STOKER Filed-May s, 1923 2 Shets-Sheet 2 E F F. E H y C h m o o Patented June 30, 1925.

CARLH. JEFFERS, F CANTON, OHIO.

LOCOMOTIVE s'roxna.

Application filed May 5,1933; Serial No. %6,792. J

To all whom it may concern:

Be it known that I, CARL H. Jnrrnas, citizen of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Locomotive Stoker's; and 1,,do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled use the same.

The presentinvention relates to automatic locomotive stoliers, and is particularly an improvement over the locomotive stoker disclosed in my Patent No. 1,423,221, granted July 18, 1922..

The invention also has for an object the improvement of the stoker generally in its constructionv and details, to enhance the utility and efliciency thereof.

With the foregoing and other ob'ects in view, which will be apparent as the escription proceeds, the invention resides in the construction and arrangement of parts, as

hereinafter described and claimed, it being understood that changes can be made within the scope of what is claimed, without depart ing from the spirit of the invention.

The invention is illustrated in the accompanying drawings, wherein- Fig. 1 is a longitudinal vertical section of the stoker, portions being broken away and portions shown in elevation.

Fig. 2 is a plan view of the Stoker, por- 86 tions being broken away and portions removed.

Figs. 3, 4 and 5 are sectional details taken on the respective lines 33, 4,-4, 5--5 of Fig. 2.

A conveyor trough 8 is provided to be disposed at the bottom of the tender and has a hopper 7 for receiving the coal from the tender,and an auger or screw conveyor 9 is rotatable in the trough for working the coal forwardly therein. The rear end of the trough 8 is open, and a rearwardly 05- set bearing 11 is supported from the rear end of the trough and has journaled therein c the rearwardly extending stem orcstub shaft 10 at the rear end of the conveyor-9.

The trough 8 is supported for longitudinal sliding movement or vibration'due to the slackening and tensioning of the coupling between the locomotive and-tender. Thus,

a the trough 8 is provided near its rear end with a rigid depending supporting lug 12 of inverted "T-shape sliding provided in a U-shapedhanger 12" in a rigid guide 12 secured to the bottom of the tender, at opposite sides of the trough 8 and hopper 7, as 4. The hanger 12 seen in Fig. is thus rigidly secured A to the tender and supports the trough 8 for 10 in the art to which it appertams to make and longitudinal sliding movement therein with the headed lu guide 12 to ho d or hanger.

12 interengaged with the the trough on the support The trough 8 is provided near its forward end with an arched crusher 13 forming the forward end of the hopper 7 ,and the bottom of said crusher has the ribs or teeth 13 converging forwardly and extending close to the conveyor 9 Thus, lumps of coal at their forward ends.

moved with the conveyor 9 under the crusher 13 will be ground into small pieces between the conveyor 9 an the ribs 13, thereby crushing the coal into small pieces before trough.

Should a piece of slate, hard object lodge in ,the crusher 13, so as to rotation of the conveyor,

stop the ject can be ejected of the conveyor so it is discharged from the such ohby. reversing the rotation as to work the object rearwardly and to discharge or eject it through the rear open end of the trough 8. This can be done even though the tender is full of coal, so that access to the crusher 913 cannot be had. The, action sides and bottom assist in crushing the coal. A centrifugal blower or of the conveyor at the of, the trough will also fan is used for delivering the crushed coal into the firebox,"

and comprises the lindrical form with its axis disposed transversely of the locomotive, and said casing has an-inlet 16 at the top with which the forward open end of the trough 8 communicates, for discharging the trough through ing 15. The forward the crushed coal from the inlet 16 into the casend portion 14 of the trough is partly of spherical form and is fitted in a spherical recess 17 with which the inlet portion of the thus providing a casing 15 is provided, and socket connection -or flexible joint between the blower casing and trough, permi tting them to swing or drum or casing 15 of cyvibrate relatively to one another due to the relative motion of The rotor of the and such rotor the locomotive and tender. blower has the blades 18, is secured on a transverse I shaft 19 extending through the sides of the l charge pipe front of the casing casing. Said shaft is rotated. at a high speed, during the operation of the stoker,

for delivering the crushed coal from the easing by centrlfugal force up through a dis- The conveyor extending upwardly from the 15. 9 and blower shaft 19 are \operatively connected, to be driven by the same power, for

which a suitable engine can be provided (not shown). The

shaft 19 is geared, as at 21, to a transverse located between the pipe 20 lower casing, and a worm 24 meshes with a worm wheel 25 counter shaft 23 and top of the b on theshaft 23 0 secured on a longitudinal shaft 26 journaled in a bearing 27 secured -on the casing 15.

l secured on th'e casing 15 immediately in 25 flexible joint A stub shaft 28 i s journaled in a bearing 27 front of the inlet-.16, and has a universal or the conveyor 9,

i the center of the ball and socket oint between the trough 8 and casing 15,

e conveyor 9 and shaft 28 can with the forward end of such joint being located at whereby flex relatively the same as the trough and the casing.

' A slip clutch is provided 28, and includes a clutch member 31 on the shaft 26 and a clutch member:

26 and slidable between the shafts 32. integral with the forward end .of the shaft 28 or secured to said shaft in any suitable manner, the of the clutch ribs to 2, and to permit relatively to one breakage when a lump of slate, the crusher 13.

confronting abutting faces members having grooves and engage one another, as seen 1n Fig.

the clutch members toslip The clutch member 32 has a recess 30in which the rear end of the shaft 26 is journaled for rotation, and the clutch member 31 is held the clutch member 33 .surrounds the shaft 26 between the clutch .34 mounted on the b sprmg pressure against Thus, a coiled spring and is confined member 31 and a collar shaft 26.v Said collar is adjustable to regulate the pressure of the sprlng and for screw-threaded 0 this purpose, the collar is n the shaft, and is retained in its adjusted position by means of a set screw 35. The

the clutch member 31 in engagement with spring 33 normally holds the clutch member 32 to drive the conveyor 9 when the blOWGIxShfift 19 is rotated, but the conveyor can stop without stopping the blower or breaking any part of the operative connection, inasmuch as the clutch member 31 is forced by'ca from the clutch shaft 26 to continue its rotation. The

e shaft 19 and sh'aft26 is f ratio between th maction out of engagement member 32, to permit the gear motor or another, so as to avoid the conveyor 9 is stopped by rock or other obstruction in from the trough into the casing, a screw 12 such that the blower is rotated at a .high

speed, whilethe conveyor 9 is rotated at a slow speed, thus conveying the coal slowly to the blower which delivers the coal at a high velocity through the pipe 20.

The forward end of the trough 8 and the blower are located below the deck 38 between the locomotive and tender, so .as to be out of the way.

The crushed coal is pipe 20 into the firebox by means of a delivery pipe or nozzle 37 which is slidable or telescoped on the pipe 20 so that it may be raised and lowered to and from delivery delivered from a the position, The upper end 39 of the nozzle 37 30 1s curved or directed forwardly to register with the fuel door opening 40 of the firebox when the nozzle is raised, thereby directing the coal rearwardly through the opening 40 q is forced up through 35 position, and said plate also closes the open ing '40 around the end 39 of the nozzle when said nozzle is raised. r

The nozzle is raised by pressure fluid,

such assteam or compressed air,for which 44 1s securedon a sup-v purpose a cylinder porting bracket 43 projecting, forwardly from the-blower casing 15, and the piston rod 45 extends upwardly and is connected to a bracket 46 secured to the'fron't wall of the nozzle 3 7, whereby the nozzle is raised and lowered with the piston. The cylinder 44 has a pressure id inlet 47 near its lower end for admitting the fluid, to raise the piston and nozzle, as seen in Fig. 1,, and when the fluid is permitted to discharge, the nozzle .and piston will gravitate, thereby removing,

the nozzle from the down outiof the way.

Having thus is claimed as new is I I K 1. A stoker comprising a fuel delivery fuel door opening 40 described the invention, what u blower including "a casing having an inlet portion, a fuel trough, the deliver end of the trough and said mlet portion o the cats ng being formed with spherical surfaces 7 fitted'one within the other to provide aball and socket connection betweg the casing and trough through which e fuel flows conveyor within thetrough, and actuati means for the conveyor assembled with said casing, said actuating means and conveyor having a flexlble connectlon centrally of said ball and. socket joint.

2.. A stokeryco'mprising 'a fuel deliver i fuel trough having a flexible connection with the casin a conve or working in said trough for feed ingfueinto'thel blower including a casing, .a-

or said troughlocated under the'trough,"

ower casing, a support and a sliding connection between said sup- In testimony whereo'fI have signed my port and trough including portions rigidly name to this specification in the presence 1 I united with said trough andsupport, one of two subscribing witnesses.

portion constituting a longitudinal guide, CARL H. J EFFERS. and the other portion working in said guide, Witnesses: said portions being interengaged to hold the J AMEsL. SHARICK,

troughon the support. 4 v ALBERT J. NUsLY, Jm 

